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Title: GT-40P and Headers
Post by: Karnac on June 07, 2006, 10:23:48 PM

I'm converting 5.0 too 5.0 HO and am using GT-40P Heads. The driver side headers are blocking the spark plugs, the passanger side is fine however. The plug ports are strater then the stock heads. Any suggestions to buy or work-arounds?

Title: GT-40P and Headers
Post by: Sick88Tbird on June 07, 2006, 10:36:14 PM

You'll need gt40-p specific shorties...or you can spring for a set of Mac full-length headers, they fit fine.

Title: GT-40P and Headers
Post by: Karnac on June 07, 2006, 10:56:08 PM

thanks

Title: GT-40P and Headers
Post by: Tbird232ci on June 08, 2006, 06:19:11 PM

Or use 90* plug boots.

Title: GT-40P and Headers
Post by: Sick88Tbird on June 08, 2006, 10:52:06 PM

90* plug boots don't cut it most of the time, although they help. My full-length flowtech headers wouldn't even come close to bolting up because most of the primaries had a spark plug in the way. I was told that GT40P's will fit with stock mustang "headers" but it's pretty hairy...expect melted wires.

Title: GT-40P and Headers
Post by: Innes on June 12, 2006, 11:47:34 PM

most frpp headers should work, so they state

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Technical => Engine Tech => Topic started by: Karnac on June 07, 2006, 10:23:48 PM